A commercial jet liner hits an air pocket and drops 275 feet. After climbing 160 ​feet, it drops another 158 feet. What is its overall vertical​ change?

The triangles in the diagram are congruent. if mzf = 40°, mza = 80°, and mzg = 60°, what is mzb?

Aboat has a speed of 9 mph in calm water. it takes the boat 4 hours to travel upstream but only 2 hours to travel the same distance downstream. which equation can be used to find c, the speed of the current? 2(9 – c) = 4(9 + c) 9 + c = 4(9 – c) 9 – c = 2(9 + c) 4(9 – c) = 2(9 + c)

What is the 8th term of the geometric sequence with this explicit formula? an= )(n-1)